A stream of positively charged particles having $$\frac{q}{m} = 2 \times 10^{11}$$ C kg$$^{-1}$$ and velocity $$\vec{v_0} = 3 \times 10^7 \hat{i}$$ m s$$^{-1}$$ is deflected by an electric field $$1.8\hat{j}$$ kV m$$^{-1}$$. The electric field exists in a region of 10 cm along $$x$$ direction. Due to the electric field, the deflection of the charge particles in the $$y$$ direction is _____ mm.